LEFM Analysis and Service Simulation Testing of a Welded Frame Structure

LEFM Analysis and Service Simulation Testing of a Welded Frame Structure

In this paper the results from fatigue analysis and testing of a welded frame are discussed. The structure contains some typical welds, which can be found on a frame to a wheel loader. The test was carried out with a service load spectrum with an overall stress ratio, R, of about ‐1. The fatigue cra...

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Veröffentlicht in:Steel research international 2006-12, Vol.77 (12), p.857-865
1. Verfasser: Byggnevi, Magnus
Format: Artikel
Sprache:eng
Schlagworte:
Construction equipment
Correlation
fatigue
Fatigue (materials)
Fatigue failure
Frames
LEFM
Loaders
Stress ratio
structure
TECHNOLOGY
TEKNIKVETENSKAP
testing
weld
Welded joints
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Zusammenfassung:In this paper the results from fatigue analysis and testing of a welded frame are discussed. The structure contains some typical welds, which can be found on a frame to a wheel loader. The test was carried out with a service load spectrum with an overall stress ratio, R, of about ‐1. The fatigue cracks started from the root side of the welds in all cases. The test results were correlated with linear elastic fracture mechanics (LEFM) including different assumptions of residual stress distributions.
ISSN:1611-3683
1869-344X
DOI:10.1002/srin.200606473